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Diodes Incorporated G20H120CTFW
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- Part No.:
- G20H120CTFW
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
G20H120CTFW.pdf
- Description:
- DIODE ARR SCHOTTKY 120V ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:41
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Product details
Overview
G20H120CTFW from Diodes Incorporated is a Trench Schottky rectifier rated for 120 V reverse voltage and 20 A average forward current at Tc = 130°C, featuring low forward voltage (0.63 V typ. @ 10 A, 25°C), negligible switching losses, and AEC-Q101 qualification for automotive-grade reliability-used in high-frequency DC-DC converters and onboard inverters.
For engineers reviewing the G20H120CTFW datasheet, G20H120CTFW pinout, G20H120CTFW application, or G20H120CTFW equivalent, key selection criteria include junction temperature capability (–55°C to +175°C), thermal resistance (3°C/W junction-to-case), leakage current (4 mA max @ 125°C), and TO-220ABFP package compatibility with standard heatsinking layouts.
Technical Context
This device employs a trench-based Schottky architecture to minimize forward voltage drop while maintaining controlled reverse leakage-enabling high-efficiency operation in 100 kHz–1 MHz switch-mode power supplies. Its 770 pF junction capacitance at 4 V reverse bias supports fast transient response without excessive ringing.
The ITO-220(S)AB package integrates a copper leadframe and green molding compound (UL 94V-0, halogen/antimony-free), delivering 3°C/W thermal resistance to case when mounted on specified aluminum/copper heatsink structures per JESD-51.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 120 V - Maximum repetitive peak reverse blocking capability; ensures safe operation in 48 V–60 V bus-derived DC-DC stages. |
| IAV | 20 A @ Tc = 130°C - Continuous average forward current rating under real-world heatsink-limited thermal conditions. |
| VF | 0.63 V typ. @ 10 A, 25°C - Low conduction loss enabling >95% efficiency in high-current, high-frequency rectification paths. |
| IR | 4 mA max @ 125°C, 120 V - Controlled leakage enables stable performance in elevated-temperature automotive cabin or under-hood environments. |
| RthJC | 3°C/W - Confirmed thermal resistance from junction to case; enables accurate thermal design using standard TO-220 heatsink footprints. |
| CJ | 770 pF @ 1 MHz, 4 V - Junction capacitance value directly impacts EMI filtering requirements and snubber sizing in SMPS output stages. |
Pinout & Package
Package: ITO-220(S)AB (JEDEC TO-220ABFP variant), single-ended anode-cathode configuration with isolated tab (pin 2 = cathode, pin 1 = anode, pin 3 = isolated metal tab).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Main current entry point; electrically connected to internal die anode; requires PCB trace width matching 20 A continuous rating. |
| Pin 2 | Cathode | Main current exit path; bonded to die cathode; serves as primary thermal and electrical return node in layout. |
| Pin 3 | Isolated Metal Tab | Electrically isolated heatsink interface; enables mounting to grounded chassis without shorting cathode; no internal semiconductor connection. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS power rails per Rev_D stress testing. |
| Negligible switching losses | Zero minority-carrier storage delay enables clean turn-off in hard-switched topologies up to 1 MHz. |
| High junction temperature range | Operates continuously from –55°C to +175°C junction, supporting under-hood and industrial ambient extremes. |
| Green RoHS-compliant construction | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) meets EU Directive 2015/863/EU. |
Applications
| On-Board DC-DC Converters | High-Frequency Inverters |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 48 V–12 V buck converters for automotive infotainment and ADAS ECUs. IC Role / Device Role / Timing Role: High-efficiency unidirectional power conversion element replacing conventional silicon diodes to reduce conduction loss. Use Value: 0.63 V VF at 10 A lowers rectifier power dissipation by ~40% vs. comparable Si diodes, reducing heatsink size and system weight. |
Use Scenario: Output stage rectification in 20–100 kHz solar microinverters and UPS inverters. IC Role / Device Role / Timing Role: Fast-recovery freewheeling and output rectification component handling bidirectional current transients. Use Value: 770 pF junction capacitance minimizes capacitive coupling noise during high dv/dt switching edges, easing EMI filter design. |
| High-Frequency Switch-Mode Adapters | Automotive Cabin Power Supplies |
Use Scenario: Output rectification in compact 65 W–100 W laptop adapters operating at 200–500 kHz. IC Role / Device Role / Timing Role: Primary output rectifier managing continuous 20 A load with minimal thermal rise in confined enclosures. Use Value: 3°C/W RthJC allows direct mounting to small aluminum heatsinks, eliminating need for forced air cooling in sealed designs. |
Use Scenario: 12 V auxiliary power rail rectification in vehicle telematics and digital cockpit modules. IC Role / Device Role / Timing Role: AEC-Q101-qualified rectifier ensuring long-term reliability in thermally cyclic cabin environments. Use Value: 4 mA IR max @ 125°C prevents thermal runaway during sustained high-temperature operation, meeting ISO 16750-4 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS20H120CG | Same 120 V / 20 A rating; VF = 0.72 V @ 10 A, 25°C; RthJC = 3.5°C/W; TO-220AC package (non-isolated tab). | Lacks isolated tab; requires insulating washer for heatsink mounting; higher VF increases conduction loss by ~14%. | Prefer when cost sensitivity outweighs thermal isolation needs and layout permits insulated mounting. |
| Vishay VS-20CPH12 | 120 V / 20 A; VF = 0.68 V @ 10 A, 25°C; RthJC = 2.8°C/W; TO-247AC package; no AEC-Q101 qualification. | Higher thermal performance but larger footprint; not automotive-qualified; CJ = 850 pF. | Select for industrial SMPS where space allows TO-247 and AEC-Q101 is not required. |
Compared with STPS20H120CG and VS-20CPH12, G20H120CTFW uniquely combines AEC-Q101 qualification, isolated tab for simplified heatsinking, lowest VF (0.63 V), and green compliance-making it optimal for space-constrained, thermally demanding automotive and industrial DC-DC designs.
Availability
G20H120CTFW is available at Aetrix Electronics and suitable for on-board DC-DC converters, high-frequency inverters, and automotive cabin power supplies requiring stable component supply across production lifecycles.
Supply support for G20H120CTFW includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management and signal integrity solutions for automotive, industrial, and computing markets.
G20H120CTFW belongs to Diodes' Trench Schottky Rectifier product line, engineered specifically for high-efficiency, high-temperature rectification in automotive-grade and high-frequency SMPS applications.
FAQ
What is the maximum junction temperature for continuous operation?
The G20H120CTFW is rated for continuous operation from –55°C to +175°C junction temperature. This range is validated per AEC-Q101 Rev_D stress testing and confirmed by thermal characterization data showing stable VF and IR behavior up to 175°C under rated current conditions.
Is the metal tab electrically isolated from the cathode?
Yes. Pin 3 (metal tab) is fully electrically isolated from both anode (pin 1) and cathode (pin 2). The isolation is verified per JEDEC TO-220ABFP mechanical specification and confirmed by >1000 Vdc dielectric withstand testing between tab and pins in production screening.
Does this part require a heatsink for 20 A operation?
Yes. At 20 A average forward current, junction temperature exceeds safe limits without heatsinking. With the specified 3°C/W RthJC and 25°C ambient, a heatsink maintaining case temperature ≤130°C is mandatory-verified via derating curve in DS44852 Figure 1.
How does the 770 pF junction capacitance affect EMI performance?
The 770 pF capacitance (measured at 1 MHz, 4 V reverse bias) influences high-frequency ringing during turn-off. In practice, it necessitates careful snubber design and PCB layout-especially minimizing loop area-to avoid exceeding CISPR-25 Class 5 radiated emissions limits in automotive applications.
G20H120CTFW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 120 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 830 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 4 µA @ 120 V
- Operating Temperature - Junction:
- -55°C ~ 175°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
G20H120CTFW FAQ
1.How can I place an order for G20H120CTFW through Aetrix?
Please submit a Request for Quotation (RFQ) for G20H120CTFW on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for G20H120CTFW reliable?
The price and inventory of G20H120CTFW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for G20H120CTFW is usually 5 days.
3.What payment methods are accepted for G20H120CTFW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for G20H120CTFW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for G20H120CTFW?
G20H120CTFW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your G20H120CTFW order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for G20H120CTFW?
For technical support, including G20H120CTFW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your G20H120CTFW requirements.
6.How does Aetrix verify that G20H120CTFW is sourced from the original manufacturer or authorized distributors?
All G20H120CTFW products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that G20H120CTFW meets industry standards.
7.What is the process for return or replacement of G20H120CTFW?
All G20H120CTFW units undergo pre-shipment inspection (PSI). If there is an issue with G20H120CTFW, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The G20H120CTFW part is unused and in its original packaging.
Return procedure for G20H120CTFW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
G20H120CTFW Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
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